Results 61 to 70 of about 15,086 (203)

On the motion of a spherical cavity in a melt

open access: yesЛитьë и металлургия
Gas inclusions significantly influence the quality of solidifying melts. Dissolved gases in liquid metals, due to diffusion and chemical reactions, contribute to the formation and growth of new inclusions. The mathematical problem of the dynamic behavior
M. N. Vereshchagin   +2 more
doaj   +1 more source

Analysis on Effect of Als、N and Superheat on 40Mn2 Steel Φ50 ~60 mm Bar Crack and Technology Improvement

open access: yesTeshugang, 2022
The effect of Als、N in 40Mn2 round steel and superheat of molten steel on the steel bar crack is studied by using ARL8820 Direct-reading spectrometer, LECO oxygen-nitrogen-hydrogen gas analyzer, platinum rhodium thermocouple etc. The results show that of
Guo Zhiqiang
doaj  

“Lab‐Quakes”: Quantifying the Complete Energy Budget of High‐Pressure Laboratory Failure

open access: yesAGU Advances, Volume 6, Issue 5, October 2025.
Abstract Understanding the interplay of various energy sinks during seismic fault slip is essential for advancing earthquake physics and improving hazard assessment. However, quantifying the energy consumed by major dissipative processes remains a challenge.
Daniel Ortega‐Arroyo   +7 more
wiley   +1 more source

Genomic Basis and Climate Change Vulnerability of Migration Timing in Atlantic Salmon (Salmo salar)

open access: yesEvolutionary Applications, Volume 18, Issue 10, October 2025.
ABSTRACT With global environmental change, mismatches between seasonal movements of species and environmental conditions are increasingly impacting survival and persistence. Atlantic salmon (Salmo salar) perform long‐distance marine migrations culminating in a return to natal rivers, the timing of which varies among and within populations.
Samantha V. Beck   +11 more
wiley   +1 more source

Effects of wall superheat and mass flux on flow film boiling in cryogenic chilldown process

open access: yesAIP Advances, 2020
Chilldown process is usually the initial operation for storing and transporting cryogenic fluids. During this process, film boiling is of great importance in terms of the large time span.
Jianye Chen   +3 more
doaj   +1 more source

Exploring Low‐Global Warming Potential Refrigerants for Medium‐Charge Systems

open access: yesEnergy Technology, Volume 13, Issue 9, September 2025.
This study evaluates 15 low‐global warming potential (GWP) refrigerants as alternatives for medium‐charge systems, focusing on environmental impacts, operational performance, and system design integration. Key findings reveal R‐447A's suitability for standard climates and R‐454B's advantages in high ambient conditions, providing actionable guidance for
Fadi Alsouda   +3 more
wiley   +1 more source

Design of Electronic Expanded Valve (EEV) Control System Based On the STC89S52 Microcontroller

open access: yesZhileng xuebao, 2013
Aiming at the control problems of evaporator superheating in the household Variable frequency air conditioner, the Electronic Expanded Valve (EEV) control system was investigated based on a dead band integral-separation PID control algorithm and the ...
Wu Junyun   +3 more
doaj  

Experimental and Numerical Simulations of the Solidification Process in Continuous Casting of Slab

open access: yesMetals, 2016
Thermal simulation equipment (TSE) was recently developed to simulate the solidification process in the industrial continuous casting of slab. The grain growth, solid-liquid interface movement, and columnar-to-equiaxed transition (CET) in the continuous ...
Liang Bai   +5 more
doaj   +1 more source

Multi-Objective Optimization of the Energy, Exergy, and Environmental Performance of a Hybrid Solar–Biomass Combined Brayton/Organic Rankine Cycle

open access: yesEnergies
This research proposes integrating a combined system from a supercritical Brayton cycle (SBC) at extremely high temperatures and pressures and a conventional ORC cycle.
Guillermo Valencia-Ochoa   +2 more
doaj   +1 more source

Simulation Study and Application on Solidification Structure of E36 Steel Ship Slab

open access: yesTeshugang, 2021
In order to improve the internal quality of E36 steel slab in a steel plant, a mathematical model of the solidification process of E36 steel slab is established through ProCAST software, and on this basis, the CAFE module is used to simulate the ...
邬浩天   +5 more
doaj  

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